Open Library

The Open Library API is a free and open-source API giving you programmatic access to millions of books, authors, and publication metadata. Easily integrate book data into your apps, websites, or research projects with this powerful and reliable public books API.

Endpoints

Views

Jul 20, 2025

Last Checked

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Rate Limit

API Endpoints

Searches Open Library's book database

Full URL

https://openlibrary.org/api/api/books

Code Examples

curl -X GET 'https://openlibrary.org/api/api/books'

Parameters

{
  "format": "json",
  "bibkeys": "ISBN:0451526538"
}

Example Response

{
  "ISBN:0451526538": {
    "title": "The Adventures of Tom Sawyer",
    "authors": [
      {
        "name": "Mark Twain"
      }
    ],
    "publish_date": "1876"
  }
}

Version

v1

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